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C1435high severityChassis

Pump Motor Circuit Failure

on 1998 Jeep Grand Cherokee 4.0L I6 · 4WD

What this code means

The ABS hydraulic pump motor circuit has failed or is not responding. Without the pump, ABS and stability control cannot build pressure.

Symptoms

  • ABS and traction lights on
  • No ABS during hard braking
  • Pump motor not running

Common causes

  • Failed pump motor
  • Blown pump relay/fuse
  • Corroded pump power/ground connector
  • Faulty ABS module driver

Diagnostic steps

  1. Scan ABS module for codes
  2. Check pump motor power and ground
  3. Verify relay and fuse operation
  4. Command pump with scan tool

Other Chassis codes on this vehicle

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